318 or 360 identification video and question about exhaust manifold gasket for my car

NGINE BLOCKS

Casting numbers for the small-block Mopar and big-block Mopar engine blocks can be found on the left (driver’s) side of the block, and will consist of seven numerals. These numbers are different than the stamped eight-digit number found on the right side of the engine. That number is the last eight digits of the Vehicle Identification Number. When identifying the block, you want the raised seven-digit number, not the stamped eight-digit number.


An example of an engine block casting number. In this case, 3698330 – an RB-series 440 cubic-inch block, cast June 28, 1973.
Small-Block Mopar Engine Block Casting Numbers

2264230 – 1960-1967, 318 A-series small-block

2463252 – 273 LA-series small-block

2465330 – 1964-1966, 273 LA-series small-block

2466090 – 318 LA-series small-block

2468230 – 318 A-series small-block

2532630 – 318 A-series small-block

2536030 – 1967-75, 318 LA-series small-block

2536130 – 1965, 273 LA-series small-block

2566080 – 318 LA-series small-block

2780930 – 1968-1973, 340 LA-series small-block, Not T/A or AAR

2806030 – 1966-1969, 273 LA-series small-block

2806030 – 1961-1974, 318 LA-series small-block

2806130 – 1965-1969, 273 LA-series small-block

3418496 – 1971-1974, 360 LA-series small-block

3577130TA – 1970-1971, 340 LA-series small-block, T/A and AAR

3810230 – 1975-1978, 360 LA-series small-block

4104230 – 318 LA -series small-block, Race Engine

4179930 – 1975 – 1993, 360 LA-series small-block